I have a DSD Sr. which I originally ran single-ended out. I then put a Decware Z-Bit between the DSD Sr. and my power amps, which allowed me to use the balanced outputs on the DAC. The Z-Bit converts the balanced signal to single ended. That was a marked improvement as I feel the output voltage on the unbalanced outputs is too low for my liking.
I then learned about using repeat coils to tranform balanced to unbalanced. The best of the best is the Western Electric REP111C. I picked up one that was built/finished in a nice enclosure with high quality wiring and connectors. It bested my Z-Bit and that is how I currently run my DSD Sr.
I am certain it will improve the sound quality of the Jr. by utilizing its balanced outputs. Overall, dynamics are much improved - making the music more exciting to listen to. This is especially true with tracks that tend to be rather lean using the DSD’s single-ended ouputs. These vintage repeat coils are relatively inexpensive so in my opinion, worth exploring as an alternative option to jumping to the DSD Sr. You can always move up to the Sr. later and the great thing is, the repeat coil works brilliantly on the Sr. I like my Sr. with the repeat coil more then without. So, no money lost if you happen to invest in one.
Again, if you go this route, I highly recommend the Western Electric REP111C. Do some investigating and I feel you will come to the same conclusion.